8579149809 has 4 divisors (see below), whose sum is σ = 11438866416. Its totient is φ = 5719433204.

The previous prime is 8579149793. The next prime is 8579149853. The reversal of 8579149809 is 9089419758.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8579149809 - 2⁴ = 8579149793 is a prime.

It is a super-2 number, since 2×8579149809² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8579149879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1429858299 + ... + 1429858304.

It is an arithmetic number, because the mean of its divisors is an integer number (2859716604).

Almost surely, 2^8579149809 is an apocalyptic number.

It is an amenable number.

8579149809 is a deficient number, since it is larger than the sum of its proper divisors (2859716607).

8579149809 is a wasteful number, since it uses less digits than its factorization.

8579149809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2859716606.

The product of its (nonzero) digits is 6531840, while the sum is 60.

The square root of 8579149809 is about 92623.7000394607. The cubic root of 8579149809 is about 2047.1425435040.

The spelling of 8579149809 in words is "eight billion, five hundred seventy-nine million, one hundred forty-nine thousand, eight hundred nine".